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Part #: RL80204

Red Line 80204 WaterWetter Coolant Additive

Universal - 12 Oz. Bottle (Treats 3-5 Gallons)
Part #: RL80204
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Improve heat transfer and reduce cylinder head temperature with the Red Line 80204 WaterWetter Coolant Additive. Designed for use with all modern aluminum, cast iron, copper, brass, and bronze cooling systems, WaterWetter reduces the vapor barrier that forms on hot metal surfaces to reduce coolant temperatures by up to 20 degrees. WaterWetter is compatible with new or used coolant, including DEX-COOL and long-life versions, to improve the heat transfer of ethylene and propylene glycol cooling systems while cleaning and lubricating water pump seals. WaterWetter will not lower cooling system temperatures below the thermostatically-controlled temperature.

  • 12 oz. Bottle
  • Treats 3-5 Gallons
  • Rust & Corrosion Protection
  • Contains No Ethylene Glycol
  • Lubricates Water Pump Seals
  • Compatible with Virtually Any Coolant
  • Reduces Coolant Temperatures Up To 20 Degrees


  • MFG. Number 80204
  • Manufacturer Name Red Line
  • Shipping Weight 1.00 lb.
  • Shipping Length 3 in.
  • Shipping Width 3 in.
  • Shipping Height 10 in.
  • Fuel Type Diesel / Gas
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • UPDATE: Effective 6/1 Customer Service resumes normal business hours of M-F 8:30 – 9:00pm EST.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.